LOW-PROFILE THIN-FILM RECORDING HEAD, ITS MANUFACTURING PROCESS, AND MAGNETIC-RECORDING MEDIUM DRIVE Russian patent published in 1999 - IPC

Abstract RU 2133987 C1

FIELD: data recording on magnetic-recording media. SUBSTANCE: recording head has components of first and second poles magnetically coupled in the region of pole shoe and in rear-gap region. Pole-shoe region is located between head surface and zero height of slot. Head also has case region between zero height of slot and rear gap. Set of insulating layers is placed above first-pole component in case region. Each insulating layer starts on top and passes from it towards rear gap. Set usually includes first, second, and third insulating layers. Preferable version has top of second insulating layer arranged so that it determines zero height of head slot which makes it possible to shape second-pole shoe with very narrow track width while shaping second-pole section using standard photolithography process and also to produce very thin insulating layers, coil layer, and second-pole section. EFFECT: reduced manufacturing cost and improved efficiency of head. 18 cl, 16 dwg

Similar patents RU2133987C1

Title Year Author Number
DEVICE FOR POSITIONING MAGNETIC HEAD 1991
  • Tako Matsui[Jp]
  • Iosiaki Sonobe[Jp]
RU2072564C1
DISK DRIVE FOR INFORMATION STORAGE 1993
  • Moris Musa Dovek
  • Dzhon Stjuart Foster
  • Donal'D K.F.Lehm
  • Ehrik Savatski
RU2113019C1
AIR-CUSHION SLIDER WHICH KEEPS RECORDING HEAD WITH RESPECT TO MOBILE RECORD MEDIUM AND RECORDING SYSTEM WITH DISK DRIVE 1992
  • Erl Al'Bert Kanningehm[Us]
  • Richard Fred Kharvud[Us]
RU2106697C1
REVOLVING BEARING 1996
  • Zajn-Ehddin Botago
RU2137217C1
INTEGRAL BUSH-DISK CLAMP FOR MAGNETIC DISK MEMORY 1995
  • Zajn-Ehddin Butagou
RU2139578C1
SERVO ADDRESS CODING SYSTEM AND METHOD 1995
  • Richard Griberg
  • Dzhon K.Purkett
RU2139577C1
EQUIPMENT FOR OPTICAL DISK STORAGE DEVICE 1993
  • Glen Alan Zhakett
  • Morovat Tajefen
RU2137219C1
DIRECT-ACCESS STORAGE DEVICE, WHICH CAPACITY IS GREATER THAN 528 MB, AND METHOD FOR ITS EMBODIMENT IN PERSONAL COMPUTERS 1994
  • Dehniehl Dzhejms Kolgrouv
RU2155369C2
DEVICE FOR PLAYING-BACK DIGITAL DATA FROM MAGNETIC RECORD CARRIER 0
  • Yulian Levkovich
SU1075997A3
METHOD AND DEVICE FOR WRITING OF SERVO SYSTEM PATTERN ONTO DATA CARRIER 1995
  • Timoti Dzhozef Chejner
  • Vejn Dzhoj Son
  • Ehdvard Dzhon Jarmchuk
RU2151431C1

RU 2 133 987 C1

Authors

Kh'Jugo Al'Berto Ehmilio Santini

Dates

1999-07-27Published

1995-08-23Filed